"Nadeko Medusa, Part 1" (なでこメドゥーサ 其ノ壹, Nadeko Medūsa Sono Ichi) is the twelfth episode of the Monogatari Series Second Season anime series, first broadcast on September 21, 2013. It was directed by Hiroyuki Tsuchiya, with storyboards by Takashi Kawabata. After being relieved of the snake-like curse that tormented her, Nadeko Sengoku faces several issues, namely her tendency to victimize herself and the aftermath of Deishuu Kaiki's swindling activities in her school. In the midst of this is an unusual meeting with another snake-like entity.